题解 | #返回顾客名称和相关订单号以及每个订单的总价#
返回顾客名称和相关订单号以及每个订单的总价
https://www.nowcoder.com/practice/4dda66e385c443d8a11570a70807d250
select A.cust_name, A.order_num, oi.quantity*oi.item_price OrderTotal
from (select c.cust_name, o.order_num
from Customers c
inner join Orders o
on c.cust_id = o.cust_id) A
inner join OrderItems oi
on A.order_num = oi.order_num
order by A.cust_name, A.order_num
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